Improvement in ore-crushers



UNITED STATES PATENT OEricE.

IMPROVEMENT IN ORE-CRUSHERS.

Specification forming part of Letters Patent N0. 44,2150, datedSeptember 27, 1864.

To all whom it may concern.-

Be it known that I, A. F. W.PAR'1Z, of Wurtsborough, in the county ofSullivan and State of New York, have invented a new and ImprovedOre-Crusher; and I do hereby declare that the following is a full,clear, and exact description thereof, which will enable those skilled inthe art to make and use the same, reference being had to theaccompanying drawings, forming part of this specification, 'rn which-Figure 1 represents a longitudinal vertical section of this invention,taken in the plane indicated `by the line x x, Fig. 2. Fig. 2 is a frontelevation of the same.

Similar letters of reference indicate corresponding parts.

This invention consists in combining' with the movable block aneccentric and a supporting-link in such a manner thit by the action ofsaid eccentric a crushing and grind-l ing motion is imparted to theblock, and by this double or eccentric motion of the block the operationof crushing quartz or other substances is considerably facilitated. Theeecentric motion of the block is so regulated that the opening betweenthe stationary and the movable block at the point of exit of the orewill remain uniform according to the position given to the adjustableblock, and the l escape of coarselumps is prevented. On being dischargedfrom the crushing blocks the ore or substance to be crushed passesthrough be tween smooth crushing-rollers, which reduce the same to thedesired degree of lineness.

A represents a frame, made of castiron or any other suitable material,of sueient strength for the occasion, and supported on a foundation, B,composed of blocks of wood or built up of stone or any other suitablematerial. This frame forms the bearings for the rshaft (l, which extendsfar enough beyond the same to make room for band-wheels D, and, ifdesired, for ity-wheels, (one on either side of the frame.) Thatportionof the shaft C which is situated between the two side pieces ofthe frameis eccentric with its journals, and suspended from said eccentricportion of the shaft is the crushing-block E. This crushing-blockconsists of a heavy piece of cast-iron with a face of chilled cast-ironor other suitable hard material, which is secured to the body of theblock by wedges a, or other means, in such a 1 `manner that the same canbe readily removed when worn, and replaced by a new one, withouteffecting the bodyof the block. The lower end of the block E issupported by a link, F, one end of which rests in a semicircular cavity,b, in said block, while its opposite end is supported in a similarcavity, c, in the rigid end piece, G, of the frame A.

The crushing ofthe ore or other material is effected between the movableblock E and the stationary block H. This latter block, like the movableblock, is composed of two partsviz its cast-iron body and its removablechilled face, which is to be replaced when worn, and it (the block) isheld in position by cross-bars I and screw-bolts J. By means of thesescrew-bolts and cross-bars the stationary block H can be adj ustedtoward and from the movable block according to the state of neness towhich the ore or other' material is to be reduced by thecrushing-blocks. The degree of fineness to which the ore or othermaterial is reduced naturally depends upon the size ofthe opening at thepoint of exit of the ore or other material, or upon the distance betweenthe lower edges of the crushingblocks. 1f this discharge-openingincreases when the' jaws open, unbroken lumps larger than the requisitesize drop out from between the jaws, but in my crusher the link F andtheeccentric shaft` C are combined with the movable crushing-block in sucha manner that the opening at the point of eXit of the oreor othermaterial will remain uniform for all practical purposes, whatever theposition ofthe movable block, and the size of said opening dependssolely upon the position ofthe stationary block, as previously stated.

By the action of the eccentric shaft C a combined grinding and crushingmotion is imparted to the movable block E, which considerablyfacilitates the operation of crushing quartz or other hard materials.

The ore or other material on being discharged from the crushing blocksdrops down upon the inclined apron K, which conducts the same to thesmooth crushing-rollers L. These rollers have their bearings in suitableboxes, M M', secured to the bottom timbers of the foundatiou B. TheboxesM of one of these rollers are movable in suitable guides, and they areadjusted toward and from the two other boxes, M, by two set-screws, d,and they are rendered yielding by interposed springs e, of indizi-rubberor other ysuitable material, so that in case enlarge lump or some hardmaterialv should by accident get between the two rollers breakageorinjury tothe machineryis avoided.

The crusl el ore or other material, on being discharged from the rollersL, is collected in si suit-able rrc'ptacle placed underneath; or, iFdesired, it may at once be conducted io the deuilpliurizer or to theainalgamator.

I claim ns new und desire to secure by Let'- ters Patentl. Giving to themovable block E a com bined crushing and grinding inotion by means ofthe eccentric shaft C, upon which it is suspended, and the rear rockingsupport, F, substantielly as described.

2. The horizontally-adjustzrble block H, in combina-tion with themovable block E, when supported by the rocking rear support, F,substantially as described.

A. F. W. PARTZ.

Witnesses THEO. TUSCH, M. M. LIVINGSTON.

